Cannot send Email :( - The remote certificate is invalid according to the validation procedure

Question

    public static void SendEmail(StringBuilder sb) {
            string mailbody = string.Empty;
            MailMessage mail = new MailMessage();
            SmtpClient smtpServer = new SmtpClient("aaaaa.com");
            smtpServer.Credentials = new System.Net.NetworkCredential("username", "pwd");
            //smtpServer.Port = 587;
            mail.IsBodyHtml = true;
            smtpServer.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
            mail.BodyEncoding = System.Text.Encoding.UTF8;
            smtpServer.UseDefaultCredentials = true;
            smtpServer.EnableSsl = true;
            mail.From = new MailAddress("bbbb.com");
            mail.To.Add("ccccc.com");
            mail.Subject = string.Format("test");
            mailbody = sb.ToString();
            mail.Body = mailbody;
            smtpServer.Send(mail);

//everytime I get this error message and how to handle this, is this a security breach to bypass ssl in a company ? kindly advise the best way to handle this code and to send email. }

Have your network uses proxy server? AFAIK `EnableSsl = false` doesn't work for Gmail. Try using export and import certificate with MMC instead: http://stackoverflow.com/a/17885892/6378815. — Tetsuya Yamamoto, Mar 16 '17 at 06:35

score 0 · Answer 1 · answered Dec 16 '17 at 10:53

0

Try the Unexpected “ The remote certificate is invalid according to the validation procedure.”

...tell StmpClient to ignore security with

client.EnableSsl = true;

answered Dec 16 '17 at 10:53

mqueirozcorreia

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Cannot send Email :( - The remote certificate is invalid according to the validation procedure

1 Answers1